Strain Gage Techniques for Internal Strain Measurements in Boron-Epoxy Composites

reportActive / Technical Report | Accession Number: AD0759548 | Open PDF

Abstract:

AT WAS DIRECTED TOWARD EVALUATING AND VERIFYING THE RESPONSE OF STRAIN GAGES EMBEDDED IN BORON- EPOXY COUPONS. The primary objective was to fabricate, test and evaluate approximately ninety boron-epoxy tensile specimens containing embedded strain gages. Secondary efforts included improvement of the embedded strain gage design, investigation of embedded single-wire gages, investigation of strain gage embedment and interlaminar shear effects and reporting of materials property data. The results indicate that strain gages embedded in boron-epoxy composite laminates perform in the same manner and with the same quality and reliability as strain gages bonded to surfaces. Embedding the strain gages did not affect the laminate structural properties but the embedded gages were affected, in a few cases, during specimen curing.

Author(s):
Egger, R. L.
Author Organization(s):
BOEING CO KENT WA AEROSPACE GROUP
Descriptive Note:
Final rept. May 1971-Dec 1972
Supplementary Note:
DOI: 10.21236/AD0759548
Pagination:
0205

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release
Distribution Statement:
Approved For Public Release; Distribution Is Unlimited.

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
D180-15224-1, AFFDL-TR-72-151
Contract/Grant Number(s):
F33615-71-C-1639
Project Number(s):
AF-1347
Monitor Series:
TR-72-151, AFFDL
 Subject Terms
Joint Capability Areas:
JCA_5_Command and Control; JCA_5.3_Planning; JCA_5.5.2_Task; JCA_5.5_Direct; JCA_5.3.4_Develop Courses of Action; JCA_5.3.5_Analyze Courses of Action; JCA_5.3.3_Develop Strategy; JCA_8.2.4_Leverage Capacities and Capabilities of Security Establishments; JCA_8.2_Shape; JCA_8_Building Partnerships; JCA_4.7.2_Installation Services; JCA_4.7_Base and Installations Support; JCA_1_Force Support; JCA_1.3_Human Capital Management; JCA_1.3.2_Personnel Management; JCA_1.2.5_Lessons Learned
Modernization Areas:
Fully Networked C3
Communities of Interest:
Sensors
Descriptor(s):
*COMPOSITE MATERIALS, MEASUREMENT, LAMINATES, STRAIN(MECHANICS), INSTALLATION, STRAIN GAGES, BORON, EPOXY RESINS
Field(s)/Group(s):
Laminates and Composite Materials
Keyword(s):
EMBEDDING
Report Date:
1973 Apr 01